This is the emissions system warning light, commonly referred to as the "Check Engine" light. The information below was complied by me, it explains what causes the check engine light to come on and the process of finding the cause. When the Check Engine light (or Service Engine Soon) is turned on, the systems computer control unit (called the ECM) has sensed a fault in the electronic controls of the engine and/or the emission system. When this happens you will seldom feel the car engine run any different. There are about 50 possible system faults. To find out which one is causing a problem have the system scanned by a local shop with a MB compatible scan tool.
Please read on.
Nothing to do with engine at all! This is a yellow light where the other indicator lights are located, but not the check engine light which is separate altogether. Thanks
The other yellow light is the "ASR" (accelerator slip regulator) system warning light. It is an early form of traction control.
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